libstdc++/6642: Constness prevents substraction of iterators

[paolo@gcc.gnu.org]

Synopsis: Constness prevents substraction of iterators

Responsible-Changed-From-To: unassigned->paolo
Responsible-Changed-By: paolo
Responsible-Changed-When: Wed May 29 02:44:32 2002
Responsible-Changed-Why:
    Working on it
State-Changed-From-To: open->analyzed
State-Changed-By: paolo
State-Changed-When: Wed May 29 02:44:32 2002
State-Changed-Why:
    Confirmed. See DR179 <Ready>.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6642